DUAL MOTOR SYSTEM WITH FLOW CONTROL

A dual motor system includes a first motor providing a lower speed range and a second motor providing a higher speed range, wherein the motors are coaxially arranged and aligned on and drive a common shaft, and a motor control system controlling the speed of the first motor and engaging the second m...

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Bibliographische Detailangaben
Hauptverfasser:	Ellis, II, James D, Coupart, Eric, Schrader, John G, Clark, Bret S, Rao, Pranesh
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY FENCING FIXED CONSTRUCTIONS GENERATION HEATING LIGHTING MASTS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A dual motor system includes a first motor providing a lower speed range and a second motor providing a higher speed range, wherein the motors are coaxially arranged and aligned on and drive a common shaft, and a motor control system controlling the speed of the first motor and engaging the second motor as needed. The first motor is a variable speed motor providing a lower two-thirds of a full speed range, and the second motor is an induction motor providing the upper one-third in the form of one or more discrete fixed speeds. The system may include a transformer including a first winding tap which provides a first higher speed, and a second winding tap which provides a second higher speed. The system may also include a flow control system for automatically controlling the speed of the motors for particular applications, such as flow control in a pool.